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General Science / Re: Is there evidence of homosexuality among dogs?
« on: 22/01/2012 00:19:15 »
Very interesting.
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Men do not wear dresses or skirts. That is two things, not one.
Men do not wear blouses. Just shirts. Women can wear either.
Men do not wear high heals. Women do (although they shouldn't).
Men do not wear decorative scarves as part of an ensemble. Women do.
Air is a reasonably good insulator if it can be blocked from moving. And, thus, fluffy insulation blocks air movement, and uses it to insulate. A good "wind breaker" is also surprisingly insulating due to blocking the wind.
To get fluffyness without insulation, you will have to figure out how to maximize the air flow, while maintaining the fluffyness. For example, a tangle of fishing line might be fluffy, but wouldn't block the wind, and thus wouldn't be insulating.
You could also look for materials that have very high heat conduction. For example, copper wool would likely feel cool to the touch as long as the ambient temperature is not too high.
Actually you bring up an interesting trend that follows through into adulthood. Boys and girls play with boy's toys, but boys do not (as a rule) play with girl's toys.
As adults, men and women both wear male clothes. Men never wear women's clothes.
Apparently guys' stuff is considered fair game for both sexes. Girls' stuff is still just for girls.
Nawww!!! You can't ask such a question on a site like this and expect to walk away with only giant ice cubes!
Here's a no-electricity frig that lowers the temp ~25°F, ~14°C!
Pot-in-a-pot frig video
A desert refrigerator
A Nigerian invention keeps food fresh without electricity
The Rolex Award for the no-elec frig